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+/*
+ * Copyright (C) 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package benchmarks;
+
+import com.google.caliper.Param;
+import com.google.caliper.Runner;
+import com.google.caliper.SimpleBenchmark;
+
+import java.util.Arrays;
+
+public class ArrayCopyBenchmark extends SimpleBenchmark {
+ public void timeManualArrayCopy(int reps) {
+ char[] src = new char[8192];
+ for (int rep = 0; rep < reps; ++rep) {
+ char[] dst = new char[8192];
+ for (int i = 0; i < 8192; ++i) {
+ dst[i] = src[i];
+ }
+ }
+ }
+
+ public void time_System_arrayCopy(int reps) {
+ char[] src = new char[8192];
+ for (int rep = 0; rep < reps; ++rep) {
+ char[] dst = new char[8192];
+ System.arraycopy(src, 0, dst, 0, 8192);
+ }
+ }
+
+ public void time_Arrays_copyOf(int reps) {
+ char[] src = new char[8192];
+ for (int rep = 0; rep < reps; ++rep) {
+ char[] dst = Arrays.copyOf(src, 8192);
+ }
+ }
+
+ public void time_Arrays_copyOfRange(int reps) {
+ char[] src = new char[8192];
+ for (int rep = 0; rep < reps; ++rep) {
+ char[] dst = Arrays.copyOfRange(src, 0, 8192);
+ }
+ }
+}